West Bay, also referred to as West Galveston Bay, is a long inlet of Galveston Bay in Galveston and Brazoria counties that nearly runs the entire length west of Galveston Island. West Bay, as it is known today, began its formation about 5,500 years ago when Galveston Island was shaped following the rise in the sea level. At the time, West Bay was …West Bay, also referred to as West Galveston Bay, is a long inlet of Galveston Bay in Galveston and Brazoria counties that nearly runs the entire length west of Galveston Island. West Bay, as it is known today, began its formation about 5,500 years ago when Galveston Island was shaped following the rise in the sea level. At the time, West Bay was situated just north of the mouth of the Brazos River, which formed a delta at what is now San Luis Pass. Three thousand years later, the river diverted south to its present location at Surfside Beach. The bay's current formation was complete by about 1,200 years ago.
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